GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2001 🢒 Blazer - 4WD - RHD 🢒 Restraints 🢒 SIR 🢒 Ignition Lock Cylinder Replacement - On Vehicle

Removal Procedure

    Object Number: 371562 Size: SH

    Caution: Unless directed otherwise, the ignition and start switch must be in the OFF or LOCK position, and all electrical loads must be OFF before servicing any electrical component. Disconnect the negative battery cable to prevent an electrical spark should a tool or equipment come in contact with an exposed electrical terminal. Failure to follow these precautions may result in personal injury and/or damage to the vehicle or its components.

  1. Disconnect the battery negative cable. Refer to Battery Negative Cable Disconnection and Connection in Engine Electrical.

    2. Caution: This vehicle is equipped with a Supplemental Inflatable Restraint (SIR) System. Failure to follow the correct procedure could cause the following conditions:

       • Air bag deployment
       • Personal injury
       • Unnecessary SIR system repairs
    In order to avoid the above conditions, observe the following guidelines:
       • Refer to SIR Component Views in order to determine if you are performing service on or near the SIR components or the SIR wiring.
       • If you are performing service on or near the SIR components or the SIR wiring, disable the SIR system. Refer to Disabling the SIR System.

  2. Disable the SIR system. Refer to Disabling the SIR System in SIR.
  3. Remove the turn signal switch. Refer to Turn Signal Switch Replacement - On Vehicle .
  4. Insert the key into the ignition cylinder and turn the key to the start position.
  5. Using an awl, insert the tip into the ignition lock cylinder access hole.
  6. Push down gently on the awl and remove the lock cylinder from the steering column.

Installation Procedure

    Object Number: 371562 Size: SH
  1. Perform the following steps to install the ignition cylinder to the steering column.
    2. 1.1. Align the positioning locking tab slot on the lock module assembly to the positioning tab on the ignition lock cylinder.
    1.2. Push the lock cylinder in until the locking tab locks in the lock module assembly.
  2. Install the turn signal switch. Refer to Turn Signal Switch Replacement - On Vehicle .
  3. Enable the SIR system. Refer to Enabling the SIR System in SIR.
  4. Connect the battery negative cable. Refer to Battery Negative Cable Disconnection and Connection in Engine Electrical.